The screen is locked, I can't write the password to open it

If iPad isn’t responding, do one of the following:

• On an iPad with a Home button: Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.
• On an iPad with Face ID: Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the top button. When the Apple logo appears, release the button.

If, however, the iPad is disabled because you have forgotten your passcode - or have attempted to use the incorrect passcode, you’ll need to follow this procedure:

https://support.apple.com/en-gb/HT204306